Method for producing a bendable and twistable element and such a

Details Method for producing a bendable and twistable element and such a Method for producing a bendable and twistable element and such a

1981-01-23

1983-06-07

Kimlin, Edward C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156228, 156245, 156296, 156305, 1563077, 156221, 416135, 416230, 416241A, 264261, 2643281, B32B 3100, B29C 1900, F01D 2526, B29F 100

Patent

active

043869890

ABSTRACT:
A bendable and twistable element having a high level of tensile strength, while remaining flexible and bendable in respect of twisting is produced by individually forming in a mould unitary layers of resin impregnated cut lengths of a continuous member, with their ends located between resin impregnated layers of fabric, polymerizing the resin, locating a plurality of the unitary layers in a further mould with the interposition, between the superposed pairs of layers of fabric, of layers of glue, setting the glue by heating and compression to form rigid end members, injecting a viscous elastomer into the middle portion of the bundle of cut lengths of the several unitary layers and curing the elastomer. The elements have particular use for connecting helicopter rotor blades to a hub member.

REFERENCES:
patent: 3599291 (1971-08-01), Alexander
patent: 3619448 (1971-11-01), Palfreyman et al.
patent: 3762834 (1973-10-01), Bourquardez et al.
patent: 4251309 (1981-02-01), Class et al.

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